Lateral-motion device.



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ARNOLD A', WEIGEL, OF CHICAGO, IELINOIS,'ASSIGNOR T0 ALBERT G. WELCH, 0FCHICAGO, ILLINOIS, TRUSTEE UNDER THE WILL OF EDWIN S. WOODS, DECEASED.

LATERAL-MOTION DEVICE.

Specification of Letters Patent.

Patented June 20, 1916.l

Application filed September 7, 1915. Serial N o. 49,151.

To all wiz/0m l? may concern: Y

Be it known that I, ARNOLD A. 'WEIGEL, a

citizen of the United States, and ar residen-t of Chicago, the county ofCook and State oi' illinois, have inventedcertain new and usefulimprovements in Lateral-Motion Devices; and I do hereby declare that thefollowing is a full, clear, and exact descrip,

ticularly pointed out in the appended claims.`

The invention isp herein illustrated and described being used inconnection with railway ear trucks but as will be apparent, it is alsoapplicable for use in other connections where its peculiarcharacteristics may be of advantage.

In the drawings: Figure l illustrates a central longitudinal sectionalview through one end of a car truck bolster and assos ciated truck frameplate in connection with which my -im'proif'ed lateral motion device isused. Fig. 2 illustrates 'a view similar to Fig. l with the parts vinchanged relation. Fig. illustrates a transverse sectional view thereoftaken in a plane indicated by the line 3-3 of Fig. l.

Referring now drawingsr--IS indicates the'triick bolster of a railwaycar and 6 indicates a bearing plate which is carried by the usual truckframe (not shown), On the bottom side of said truck bolster adjacent itsendis foi-ined a substantially rectangular shallow recess 5, having ahorizontal topwall providing a downwardly facing flat bearing surface 7.Side and end flanges S and 9 forni respectively the side and end wallsof the recess. On the top of `the bearing'plate 6 is provided. asimilarrecess 6, with a horizontal, upwardly facing, Aherring surface 10V andlside and end Walls defined by side and en flanges 11 andlQ respectively,n Between the truck bolster bearing surface 7 and the like bearingsurface l0, on the truck frame plate .6, a plurality of closely spacedantifriction rocker elements are interposed, each of which is indicatedby thenumeral 18. Asherein illustrated, there are to that embodiment ofmy invention illust ated inl the accompanyingfour of such elements, butit will be under- -stood that any desired number of such 'rock ers maybe used in a bearing, depending, of

course, upon the load' to be transmitted between the truck bolster andassociated truck frame plate.

The rockers 13 are preferably of a length approaching rthe width of thetruck bolster andl truck frame plate and have top and bottom surfaces 1land 15. respectively, which Vhave direct bearing engagement with thebearing surfaces 7 and l0 vbefore referred to. Each vof said rockerbearing surfaces 14 and 15 are cylindrical and have a radius which ispreferably about equal to the vertical height .of the rocker. Eachrocker has reverse-ly curved sides 16 which` are curved inwardly towardv the vertical 'axial plane thereof, from lines in which the top andbottom bearing surfaces of said rocker terminate as is shown at 17, insuch manner tiat as the elements rock, the like lines of adjacentelements will ride upon, without .binding against, `said sides as isillustratcdin Fig. 2.

By providing an intermediate reverse curve in the sides of each rockerof the saine radius as is indicated at ljwhen the said rockers have beenrocked through the full amplitude of their oscillation, the sides of oneelement or rocker will engage and lock against the sides of adjacentelements or rockersand 'prevent further movement -of said elements sothat they will then form in effect a rigid bearing block having aplurality of spaced bearing surfaces.

The inner face 9 of each flange 9 at the ends of the bearing surface 7in the truck bolster is of such contour as will afford a bearingengagement with an associated part of the reversely curved side of thevproximate end element l?) when the elements have oscillated through thefull amplitude of theiranovement in either direction. The inner face l2of each end flange of the truck frame plate bearing surface is formed toprovide a like `engagfement of the proXi- `inateend element under likeconditions.

The side flanges S and 1l of the truck bolster and truck frame plate 5and 6 respectively act to retain said elements against cndwisedisplacement and to receive and resist such f end thrust as may beimposed upoirthem by said elements..`

y of the truck ment occurs between the truck bolster and truck frameplate, such movement will produce a rocking movement of the rockerelements 13 and with the top and bottom bear ing surfaces formed asbefore described, such movement will be resisted, onv account of theraising movement imparted' to the truck bolster. This resistance willmanifestly increase toward the end movement and thus retard or ease up.said movement as the elements approach an interlocking position. Thiseasing up of the movement prevents breakage of the parts and eliminatesnoise, which is objectionable, espeeially on passenger cars.

'When a full amplitude of movement of the rocker elements has occurred,all 0f said elements will be resting upon and locked against adjacentelements, and the outer sides of the endmost elements will be engagedwith' opposite. end danges 9 and 12, bolster Vand truck frame laterespectively. Under the weight of the cad, the truck bolster willautomatically return to its normal position by reason of gravity. Sincethevrocker elements are of least height along that diameter which isvertical when said elements are in their normal position gravity willcause the truck bolster to swing the rockers back toward said normalposition. As the top and bottom bearing surfaces of the elements alwayshave a bearing engagement with the bearing surfaces of the truck bolsterand truck frame plate, the rockerelements will be centered in theirreturn movement relative to the bearing ysurfaces and .l0 beforementioned. y n

As will be apparent rfrom the foregoing description, my improved lateralmotion device possesses advantages in that with such rocker elements ashave been described, I am enabled to provide more elements in a sma lerlimited space than has heretofore been possible, so that the load beingtransmitted tween the truck bolster and truck frame plate is distributedover greater number yof elements, thereby bei g capable of resistingsuch load, doing away with breakage or crushage of such elements, whichoccurs when only one or two of them arel used.

The cross section of the rockers is such as will permit their being madeof rolled metal instead of cast metal, thus adding strength andchcapness in manufacture, to its various other advantages.

While in describing my invention I have referred to certain details -inconstruction and arrangement of parts, I do not wish to be limitedthereto except as may be pointed out in the appended claims.

l claim as my invention:

l. A lateral motion device comprising in combination with membersproviding top and bottom bearing surfaces, a plurality of closely spacedantifriction rocher elements located therebetween and having topandbottom cylindrical bearing surfaces normally engaged therewith, the toand bottom bearing surfaces of said rocker e ements having radii whichare greater than one-ha the vertical height of said rockers, and havingtheir adjacent sides constructed to provide interacting bearing surfacesbetween' said elements, said 'interacting l`bearing sur# faces being soformed, that the side of one element bears against the sides of adjacentelements throughout substantially the rocking movement of said rockersand acting to' stop further movement thereof and interlock them togetherwhen they have been rocked through the predetermined angle, and means onsaid members with which the end elements engage when said elements arein their interlocked position. n

2. A lateral motion device comprising in combination with membersproviding top and bottom bearing surfaces, a plurality of closely spacedantiriction rocker elements located therebetween and having top and,bottom cylindric bearing surfaces normaily engaged therewith, the topand bottom bearing surfaces of said rocker elements having equal radiithe vertical height of said rockers, and having their adjacent sidesconstructed to `provide interactin ybearing surfaces Lbetween saidelements, said bearing surfaces being so formed that the side of oneyelement bears against the sidesr of adj acent i elements throughoutsubstantially the fullL rocking movement of said rockers fand acting tosto further movement thereof and interloc them together when Ithey havebeen rockedk through the predetermined `angle and flanges ormed ony saidmembers at the end elements engage when saidl elements have been rockedthroughout their predetermined movement. 'A n 3. ln a lateral motiondevice comprising in combination with members providing top and bottombearing surfaces, side `flanges formed on said members defining saidbearing surfaces, a plural'ty of closely spaced antifriction rockingelements located between said bearing surfaces and having top and bottomcylindric bearing surfaces engaged `therewith and adapted to rockthrough a,predetepnincd` `an le, the Isaid' top andgbottom bearing suraces of said rocker elements having equal radii which are greater thanone-h. lf the vertical height of said rockers, and having their adjacentsides constructed to provide interactingbearing surfaces between saidelements, saidfbearing surfaces being so formed that the side of oneelement bears against the sides of adwhich are greater than one-halfIfull f jacent elements throughout substantially the l full rockingmovement of said rockers and' acting to stop further movement thereofand with opposite top and bottom4 end flangesL after sn id elements havebeen the full amplitude of then' side innges :ir-ting rocked throughmovement, the to retain said ant1fr1etion elements :igninst 'endwisedisplacement.

comprising 4. in n interni motion device in (-oinhiimtion with membershaving oppositely tering recesses, the horizontal Wells of which providetop und bottom bearing surfaces which :1re defined by end and sideflanges,l e plurality of closely spacedrocker elements interposedbetween said hearing snrfuces, having top and bottom cylindric hearingsurfaces engaged therewith, said. ele ments being ndnpted to rockthrough n predetermined single,` the sides of seid elements being soconstructed as to provide interacting bearing surfaces between saidelements,

said interacting bearing surfaces being so l formed that the sldes ofone` element bears against opposite sides of adjacent elementsthroughout substantially lthe full rocking rocked through theirpredetermined ang the side fianges of said recesses acting to retainsaid elements recesses against endwise displacement.

In testimony, that I claim the foregoing as my invention I affix mysignature in the presence of two Witnesses,'this 31st day of August A.D. 19?

ARNOLD A. WEIGEL.

Witnesses: l

T. H. ALFREDs, KARL W. DOLL.

lI3A

in proper relation to seid

